Binomial Distribution Calculator Problem

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agon579

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Hello,
I’m having a calculator issue. For example, when I want to calculate 20!, I am getting: 2.4329 etc… I assume the number is to big to be displayed on the calc. This has happened to me about three times so far on the mocks and I can’t correctly answer the questions as a result.
Can someone out there please help my fix this problem?!
Thank you!
 
Thank you S2000magician, but I’m still confused.
For example, how do I calculate the probability of obtaining 10 heads from 20 coin tosses when neither the numerator (20!), nor the denominated (10! time 10!) in the calculation will fit on the calculator??
 
The nCr button on the BAII (I dunno what the HP has) will save you the grief and keystrokes of trying to do n! divided by [(r!) * (n-r)!]
 
agon579 wrote:Thank you S2000magician, but I’m still confused.
For example, how do I calculate the probability of obtaining 10 heads from 20 coin tosses when neither the numerator (20!), nor the denominated (10! time 10!) in the calculation will fit on the calculator??
Click to expand...
Even if the numbers don’t fit on the display, the calculation’s still going to work: 20C10 = 184,756.
 
Thank you both! The nCr function is awesome ; )
 
There is also nPr function if you need it. Second function of the minus sign.
If these functions were not available you could also use calculator memory:
So:
20! STO1
10! squared 1/x multiplied by RCL1 = 184,756
 
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